HTTYD

Toothless: a night fury dragon belonging to Hiccup, black with green eyes, fun, playful, absent-minded but very loyal
Fang: A monstrous nightmare dragon belonging to Patán, red with horns and red eyes, he is a bit conceited like his horse and usually, in combat, he sets his body on fire but does not burn himself
Meatball: A Gronckle dragon belonging to Fishlegs, chubby and brown, with brown eyes, she is loyal, kind and a little timid but equally good in combat
Stormfly: A deadly Nadder dragon belonging to Astrid, light blue in color, playful, kind and very loyal, fast and obviously, lethal in combat
Eructo and Guakara: a two-headed Cremallerus espantosus dragon belonging to the twins Brutacio and Brutilda. Eructo is the right head of the dragon, which Brutacio rides, and Guakara is the left head, which Brutilda rides. It is a somewhat clumsy and silly dragon, like its riders, but loyal and, if it sets its mind to it, lethal in combat.

Hiccup: a boy with a chestnut horse, green eyes, freckles, a prosthetic leg on his left leg, is optimistic, has difficulty expressing his opinions and feelings, although he has a big heart, sometimes he is a little nervous and clumsy
Snotlout: a short, stocky boy with a black horse and black eyes, he's a bit annoying sometimes, flirtatious and a little clumsy, and generally bothers Hiccup.
Fishlegs: a blond boy with blue eyes, chubby and knows a lot about dragons, he is usually a little nervous and easily frightened but very kind-hearted
Brutacio: a blond boy with blue eyes and slightly long hair, he's a bit silly, clumsy, and annoying, but also very funny, and he often teases his sister.
Brutilda: Brutacio's twin sister, also blonde with blue eyes and long hair tied in messy braids, just like her brother, is clumsy, silly, and a little annoying but very funny; she often teases her brother.